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J. Korean Ceram. Soc. > Volume 42(1); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(1): 7.
doi: https://doi.org/10.4191/kcers.2005.42.1.007
Synthesis and Photocatalytic Activity of TiO2-ZrO2 Nano-Sized Powders by Sol-Gel Process
Jae-Kil Han, Saito Fumio 1, Jong-Gu Park2, Byong-Taek Lee
School of Advanced Materials Engineering, Kongju National University
1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
2Nano Materials Technology Center, Korea Institute of Science and Technology
[ $TiO_{2}-ZrO_{2}$ ] powders were successfully synthesized by the sol-gel process using titanium iso-propoxide as a precursor. The amorphous $TiO_{2}$ particles, 70 nm in size, homogenously adhered to the surface of $ZrO_{2}$ the powders. After calcination at $450^{circ}C$, most of the $TiO_{2}$ powders appeared as an anatase type, whereas they changed to a rutile phase at $750^{circ}C$. For comparison of photocata
Key words: Nanocrystalline, Methyl orange, Photocatalytic activity, Sol-gel method
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